Data acquisition system for automotive damping adjustment

Abstract

The invention discloses a data acquisition system for automotive damping adjustment. The data acquisition system comprises an angular displacement sensor, an inertia sensing device, an acquisition card, a vehicle-mounted computer, a power supply, and a stroke signal acquisition part for a left-front wheel shock absorber, a right-front wheel shock absorber, a right-rear wheel shock absorber and a left-rear wheel shock absorber. According to the invention, the vehicle-mounted computer is connected with the USB (universal serial bus) interface of the acquisition card; the negative electrode of the power supply is electrically connected with the GND 1 of the acquisition card; the output end of a left-front wheel linear displacement sensor is electrically connected with the input interface AD 1 of the acquisition card; the output end of a right-front wheel linear displacement sensor is electrically connected with the input interface AD 2 of the acquisition card; the output end of a left-rear wheel linear displacement sensor is electrically connected with the input interface AD 3 of the acquisition card; the output end of a rear-front wheel linear displacement sensor is electrically connected with the input interface AD 4 of the acquisition card; the output end of the angular displacement sensor is electrically connected with the input interface AD 5 of the acquisition card; and the input end 1, the output end 2 and the output end 3 of the inertia sensing device are electrically connected with the input interface AD 6, the input interface AD 7 and the input interface AD 8 of the acquisition card in sequence.

Description

technical field [0001] The invention relates to a system for collecting suspension movement stroke, vehicle body roll angle and lateral acceleration during vehicle movement, more precisely, the invention relates to a vehicle damping adjustment data collection system. Background technique [0002] The prior art discloses methods for tuning the damping characteristics of shock absorbers. For example, the data acquisition device used to record the stroke of the shock absorber involved in Claude Rouelle's shock absorber damping characteristic histogram analysis method (see "Analysis Techniques for Racecar Data Acquisition (racing data acquisition and analysis technology)"), this The shock absorber stroke recording device has been widely adopted by foreign racing teams (such as the University of Michigan FSAE team). In order to achieve the purpose of recording the stroke of the shock absorber, the displacement sensor is connected in parallel with the shock absorber. The displac...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the lack of sensors related to vehicle body acceleration, inclination angle and steering wheel angle in the prior art and to limit the collection and expansion of various signals, and to provide a vehicle damping adjustment data collection system

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